Troubleshooting guide

[Edition 6]
Summary of amendments
[Edition 5]
Summary of amendments
[Edition 4]
Summary of amendments
Detailed display contents of the "show tech-support"
command
• Content displayed by the added or changed commands was
added.
Item Changes
Information cannot be entered from the console or
does not appear correctly
• The item "After line disconnection, reconnection is not
possible." for problems occurring during connection to a
modem was added.
Ethernet port cannot be connected • Actions to be taken when L2 loop detection functionality
deactivates the port (makes it
inactive) were added to the
port status check items.
Actions to be taken for 10BASE-T/100BASE-TX/
1000BASE-T problems
• Items to be checked for pin-mapping depending on the port
settings were added.
Failures occurring when the Spanning Tree
functionality is used
• Actions to be taken when the Spanning Tree functionality is
used with the Ring Protocol were added.
Multicast forwarding by IGMP snooping is not
possible
• Items to be checked when using IPv4 multicast concurrently
were added.
Multicast forwarding by MLD snooping is not
possible
• Items to be checked when using IPv6 multicast concurrently
were added.
Communication is not possible on the IPv4 PIM-SM
networks
• Actions to be taken when checking by using the
show
igmp-snooping
command
Communication is not possible on the IPv4 PIM-SSM
networks
• Actions to be taken when checking by using the show
igmp-snooping
command
Communication is not possible on the IPv6 PIM-SM
networks
• Actions to be taken when checking by using the
show
mld-snooping
command
Communication is not possible on the IPv6 PIM-SSM
networks
• Actions to be taken when checking by using the
show
mld-snooping
command
Communication failures occurring when Web
authentication is used
• Actions to be taken when an operation log message is output,
and when authentication for a terminal subject to
authentication fails completely were added.
Transferring maintenance information files • The procedure for transferring information when a
configuration file failure occurs was added.
Detailed display contents of the "show tech-support"
command
• Content displayed by the added commands was added.
Item Changes
MAC-based authentication • This item was added.
Item Changes
Ring Protocol • This item was added.
Item Changes